Customer Information Packet on Net(B) Metering SYSTEM MUST BE OWNED AND OPERATED BY CUSTOMERS OF WAKEFIELD MUNICIPAL GAS AND LIGHT DEPARTMENT

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1 Net(B) Metering Customer Information Packet on Net(B) Metering SYSTEM MUST BE OWNED AND OPERATED BY CUSTOMERS OF WAKEFIELD MUNICIPAL GAS AND LIGHT DEPARTMENT 1. Cover Letter to Customers 2. What is Net(B) Metering? 3. Net(B) Metering Application and Compliance Form 4. Interconnection Standards for Customer-Owned, Grid-Connected Electric Generating Systems of 10kW or less 5. Interconnection & Net(B) Metering Agreement

2 Dear Customer: Thank you for your interest in Net(B) Metering. Enclosed are 3 documents that are necessary for a Net(B) metering installation. 1. Net(B) Metering Application 2. Interconnection Standards for Customer-Owned, Grid-Connected Electric Generating Systems of 10 kw or less 3. Interconnection & Net(B) Metering Agreement Net(B) metering is available to customers who are interested in generating their own electricity and want to be connected to 's distribution system. Net(B) metering only applies to the following generating systems of 10 kilowatts (kw) output or less that use one of the following technologies: 1. Solar systems 2. Wind systems 3. Small hydro systems 4. Fuel cells 5. Combined Heat and Power (CHP) systems on a case by case basis Contacts: Please work with the Chief Engineer and Office Manager at our office; they will be able to assist you with a Net(B) metering installation. Local Permitting Agency Apply for appropriate electrical permits from the Town of Wakefield Electrical Inspector. Qualified Systems Customers may choose to purchase a qualifying system from a contractor of their choice. WMGLD does not make recommendations on any contractors or systems.

3 NET(B) METERING offers Net(B) Metering to customers who wish to generate their own electricity with fuel cells or solar, wind or hydro powered electric systems of 10 kilowatt or less in generating capacity. Once reviews and approves a customer-owned electric generation system, Net(B) metering allows a customer to be connected to the utility s distribution system. Any excess electricity generated by a customer can be credited to the customer s account at a net(b)rate. WHAT IS NET(B) METERING? For customers who generate their own electricity using small-scale energy systems, Net(B) metering measures the electricity you buy from Wakefield Municipal Gas and Light Department and the excess electricity you produce using your own generating equipment. Your electric meter keeps track of the amount of electricity delivered to your home from the electric grid and the electricity generated from your home into the electric grid. HOW EXACTLY DOES NET(B) METERING WORK? Basically, Net(B) metering is a special metering installation and billing arrangement between you and. Normally, your electric meter runs forward as it measures the amount of electricity that the WMGLD sends into your home or Office. If your generation system makes more electricity than you need at any given time, Net(B) metering allows this electricity to run backward through the metering installation and out into the WMGLD distribution system. This means you get full value for the electricity you generate. Net(B) metering is accomplished using a special two register meter at your home or Office. WMGLD also requires the customer to install an additional meter to separately measure the output of your generating system. HOW WILL I BE BILLED? Just as we do now, we will continue to read your meter and you will receive electric bills on your normal billing schedule. If you use more energy than you generate in a given billing cycle, you would be a Net(B) consumer, and the Net(B) consumption would appear as a charge on the current bill. If your meter ran backward more than forward in a given billing cycle, you would be a Net(B) generator for that billing cycle, and the NEG would appear as a credit on your next bill. In all cases, a monthly minimum customer charge will be applied. This is the same charge that applies to all customers, regardless of whether or not they are Net(B) metering customers.

4 WHAT ARE THE BENEFITS OF NET(B) METERING? By generating your own electricity, you may reduce your electricity bills. With a Net(B) metering arrangement, any excess electricity that you generate and do not use can be fed back to the utility, which will again reduce your electricity bill. Your excess electricity now offsets electricity you would otherwise have to buy at full retail prices, and this makes owning your own generating system more cost-effective. Without Net(B) metering, one alternative would be to purchase batteries to store the excess power for later use. Having your own battery storage for electricity is very expensive, and would typically only benefit you during a period when the WMGLD s power is off for some reason. We suggest serious consideration be given to this cost/benefit issue before choosing to install a battery back-up system. Net(B) metering allows you to get credit for most of the energy you generate. AM I ELIGIBLE FOR NET(B) METERING? In Wakefield, any electricity customer who generates at least some of their electricity is potentially eligible for Net(B) metering. Solar, hydro, wind or some combination of these resources must power your generating system. It could also be a fuel cell. CHP systems will be considered on a case-by-case basis. Other types of generating systems are not eligible for Net(B) metering. The generating system has a capacity of not more than 10 kilowatts. WHAT ARE THE TECHNICAL REQUIREMENTS? A Net(B) metering system used by a home owner or Office must include, at the customer s own expense, all equipment necessary to meet applicable safety, power quality, and interconnection requirements established by the National Electrical Code (NEC), National Electrical Safety Code, the Institute of Electrical and Electronics Engineers (IEEE), and Underwriters Laboratories (UL), and any applicable state and local agencies. must approve your system before you connect to the electric grid.

5 NET(B) METERING APPLICATION AND COMPLIANCE FORM For Installation of Customer-Owned, Grid Connected Electric Generating Systems of 10kW or Less (Appendix A to Interconnection & Net(B) Metering Agreement) (Note: This page is for informational purposes only. Contractual documents may be picked up at the WMGLD Office.) Following is the information you will need to complete a Net(B) Metering Agreement: A. Applicant Information Name Electric Account # Daytime Phone # Mailing Address Installation Address Fax & B. Electric System Information Identify Type of System: Solar PV Array Fuel Cell Wind Other Site Location of System on Property System Description: Manufacturer: Type/ Style: Nameplate Data: Voltage & Frequency: Maximum kw output: 4. Synchronous Inverter/Generator Data (circle one) Manufacturer & Model #: Year Purchased: Serial Number: Power Rating: Location: Indoor Outdoor Location on Property: Nameplate Data: Voltage & Frequency: Operating Power Factor: C. System Designer & Installation Contractor Information (if applicable): 1. Design Consultant: Address: Zip Code: Phone: ( ) FAX: ( ) 2. Installation Contractor: Contractor's License No. Address: Zip Code: Phone: ( ) FAX: ( )

6 D. Installation 1. Proposed Installation Date: 2. Submit/Attach a one-line electrical diagram for proposed electrical system, including metering points in relation to 's electrical system and the customer's generating system location. Stamped by a Massachusetts Professional Engineer Electric. E. Interconnection Compliance & Owner Acknowledgement The electrical system referenced above shall meet Wakefield Municipal Gas and Light Department s Interconnection Standards for Customer-Owned, Grid Connected Electric Generating Systems of 10kW or less. Customer shall be solely responsible for obtaining and complying with any and all necessary easements, licenses and permits, or exemptions, as may be required by any federal, state, local statutes, regulations, ordinances or other legal mandates. The customer shall submit documentation to Wakefield Municipal Gas and Light Department that the system has been inspected and approved by the local permitting agency regarding electrical code requirements. Customer shall not commence parallel operation of the generating system until inspecting written approval of the interconnection has been given by Wakefield Municipal Gas and Light Department. This Application Form shall be Appendix A to the Wakefield Municipal Gas and Light Department s Interconnection & Net(B) Metering Agreement. Signed (Customer): DATE: APPROVAL: Chief Engineer: DATE: Office Manager: DATE: General Manager : DATE:

7 INTERCONNECTION STANDARDS For Customer-Owned, Grid-Connected Electric Generating Systems of 10kW or Less (Appendix B to Interconnection & Net(B) Metering Agreement) A. General This Interconnection Standard for Customer-Owned, Grid Connected Electric Generating Systems of 10 Kilowatts or Less sets forth the requirements and conditions for interconnected non-utility-owned electric generation where such generation may be connected for parallel operation with the electrical system of (WMGLD). Generating systems will be permitted to interconnect to the WMGLD s electric distribution system only after a determination by the WMGLD that such interconnection will not interfere with the operation of the distribution circuits. B. Interconnection Requirements 1. Customer shall comply with all the latest applicable National Electric Code (NEC) requirements [NEC Articles 690 and 705], building codes, and shall obtain electrical permit(s) for the equipment installation. 2. Customer shall provide space for metering equipment and meter base as per WMGLD requirements. 3. Customer s over-current device at the service panel shall be marked to indicate power source and connection to the WMGLD distribution system. 4. Customer shall provide a safety disconnect device located adjacent to the WMGLD metering equipment. Disconnect device must be lockable by means of a padlock in either open or closed position. 5. The Customer shall assume the full responsibility for all maintenance of the generator and protective equipment and keeping of records for such maintenance. These records shall be available to the WMGLD for inspection upon request and reasonable notice. 6. Customer s power production control system shall comply with NEC Articles 690 and 705; and applicable and current Institute of Electrical and Electronics Engineers (IEEE) Standards 929 for parallel operation with WMGLD in particular the: a. Power output control system shall automatically disconnect from the WMGLD power source upon loss of WMGLD voltage and not reconnect until the WMGLD s voltage has been restored for at least ten (10) minutes continuously. b. Power output control system shall automatically initiate a disconnect from the WMGLD source within six (6) cycles if Customer s voltage falls below 60 Volts rms to ground (nominal 120 V rms base) on any phase. c. Power output control system shall automatically initiate a disconnect from the WMGLD s system within two (2) seconds if the voltage rises above 132 Volts rms phase to ground or falls below 104 Volts rms phase to ground (nominal 120 V rms base) on any phase.

8 7. Customer shall pay all costs associated with the design, installation, operation, and maintenance of the generation equipment on the customer s side of the meter. 8. Customer shall deliver the excess energy to WMGLD at the customer s premises. WMGLD will install and maintain a revenue meter capable of registering the bi-directional flow of electricity at the customer s premises at a level of accuracy that meets all applicable standards, regulations and statutes. WMGLD will require a separate meter be installed to measure production of the renewable generation source. Customer shall pay for any nonstandard meter electrical hook-up requested by the Customer. 9. Customer shall not commence parallel operation of the generation equipment until inspection and written approval of the interconnection facilities has been provided by WMGLD. Such approval shall not be unreasonably withheld. The WMGLD shall have the right to have representatives present at the initial testing of the customer s protective apparatus, and shall retain the right to periodically inspect the facility to ensure that appropriate safety standards continue to be met. 10. Once in operation, Customer shall make no changes or modifications in the equipment, wiring, or the mode of operation without the prior approval of WMGLD and the local authority. 11. Customer will remove system from service and cause inspection of all function parts by a qualified person at least every two years. 12. Solar Photovoltaic Equipment shall be in compliance with Underwriters Laboratories (UL) 1741, Standard for Static Inverters and Charge Controllers for Use in Photovoltaic Systems; UL 1703, Standard for Safety: Flat-Plate Photovoltaic Modules and Panels; and IEEE , Recommended Practice for Qualification of Photovoltaic (PV) Modules; and the solar system shall be installed in compliance with IEEE Standard , Recommended Practice for Utility Interface of Photovoltaic Systems. C. Safety All Safety and operating procedures for joint use equipment shall be in compliance with the Occupational Safety and Health Administration (OSHA) standard 29 CFR , the National Electrical Code (NEC), Massachusetts State Building Code rules, WMGLD standards, and equipment manufacturer s safety and operating manuals.

9 INTERCONNECTION & NET(B) METERING AGREEMENT For Customer-Owned, Grid Connected Electric Generating Systems of 10kW or Less This INTERCONNECTION & NET(B) METERING AGREEMENT ( Agreement) is between ( Customer ) and WAKEFIELD MUNICIPAL GAS AND LIGHT DEPARTMENT ( WMGLD ). Customer and WMGLD may be referred to collectively herein as Parties and individually as Party. 1. CUSTOMER ELECTRIC GENERATING SYSTEM 1.1 Customer s Application for Net(B) Metered Electrical Generation, including the location of the electrical generating installation and details on the electrical generating unit(s), for Net(B) Metered Electrical Generation is hereby incorporated into this agreement as Appendix A. System Location/Address: System Manufacturer: Model (Name and Number): Name Plate Electrical Capacity: Name Plate Data: kw Volts (Single or Three Phase) Energy Source: (Solar or Wind or Fuel Cell or Hydro) 1.2 Customer has elected to operate, at their own expense, a Net(B) metering system using either fuel cell, solar, wind or hydropower electric generating system, with a generating capacity of not more than ten kilowatts aggregated at the service interconnection point, in parallel with the WMGLD s electrical distribution system. This generating system is intended to offset either part or all of the Customer s electrical requirements. 1.3 A separate agreement shall be entered into for each electrical service location of Customer. 1.4 The electrical Generating System used by the Customer shall be located on the Customer s premises. It shall include all equipment necessary to meet applicable safety, power quality, and interconnection requirements established by the latest revisions of National Electrical Code (Articles 690 and 705), National Electrical Safety Code, the Institute of Electrical and Electronics Engineers, Underwriters Laboratories, as set forth in Appendix B, which is attached hereto and incorporated herein. 1.5 The WMGLD shall have the sole authority to determine which interconnection requirements set forth herein (including appendices) are applicable to Customer s proposed installation. 2. TERMS OF NET(B) METERING BILLING AND ENERGY CREDITING The WMGLD shall determine the Net(B) electricity produced or consumed by the Customer during each billing period, in accordance with the WMGLD s normal metering practices. 2.1 The electricity supplied by the WMGLD to the site consumed by the Customer, the Customer shall be billed for the Net(B) electricity supplied by the WMGLD, at the rate and with the same customer charge(s) paid by other customers of the WMGLD in the same rate class as Customer.

10 2.2 The Customer shall receive a credit for electricity generated that is distributed back to WMGLD during the billing period. This credit for the Net(B) excess kilowatt-hours generated being deducted for the current bill. 2.3 The Net(B) Credit will be calculated by multiply the actual kwh delivered to the WMGLD system by the current fuel adjustment plus nine and eight one hundredths of a cents kwh delivered. 3. INTERRUPTION OR REDUCTION OF DELIVERIES 3.1 The WMGLD may require Customer to interrupt or reduce deliveries as follows: (a) when necessary in order to construct, install, maintain, repair, replace, remove, investigate, or inspect any of its equipment or part of its system; or (b) if WMGLD determines that curtailment, interruption, or reduction is necessary because of emergencies, or compliance with good electrical practices as determined by the WMGLD. 3.2 To the extent reasonably practicable, the WMGLD shall give Customer notice of possible interruption or reduction of deliveries. 3.3 Notwithstanding any other provision of this Agreement, if at any time the WMGLD determines that either (a) the facility may endanger WMGLD personnel, or (b) the continued operation of Customer s facility may endanger the integrity of the WMGLD s electric system, the WMGLD shall have the right to disconnect Customer s facility from the WMGLD s electric system. Customer s facility shall remain disconnected until such time as WMGLD is satisfied that the condition(s) that caused the problems referenced in (a) or (b) of this section 3.3 have been corrected. 4. INTERCONNECTION Customer shall comply with WMGLD s Interconnection Standards set forth in Appendix B and the Net(B) Metering Application & Compliance Form set forth in Appendix A, which are attached and shall pay for designing, installing, inspecting, operating, and maintaining the electric generating system in accordance with all applicable laws and regulations. Customer shall deliver the excess energy to the WMGLD at the customer s premises. WMGLD will install and maintain a revenue meter capable of registering the bi-directional flow of electricity at the customer s premises at a level of accuracy that meets all applicable standards, regulations and statutes. WMGLD, require a separate meter be installed to measure production of the renewable generation source. Customer shall pay for any non-standard meter electrical hook-up requested by the Customer. Customer shall not commence parallel operation of the generating system until inspection and written approval of the interconnection has been given by the WMGLD. Such approval shall not be unreasonably withheld. The WMGLD shall have the right to have representatives present at the initial testing of Customers protective apparatus, and the Customer shall notify the WMGLD of its intent to test the generating system not less than two (2) working days prior to the scheduled test. Once in operation, Customer shall make no changes or modifications in the equipment, wiring, or the mode of operation without the prior approval of the WMGLD.

11 5. MAINTENANCE AND PERMITS Customer shall (i) maintain the electric generating system and interconnection facilities in a safe and prudent manner and in conformance with all applicable laws and regulations including, but not limited to, WMGLD s Interconnection Standards, Appendix B; (ii) obtain any governmental authorizations and permits required for the construction and operation of the electric generating system and interconnection facilities, including electrical permit; (iii) reimburse WMGLD for any and all losses, damages, claims, penalties, or liability it incurs as a result of Customer s failure to obtain or maintain any governmental authorizations and permits required for construction and operation of Customer s generating system or failure to maintain Customer s facility as required in this Section. If the WMGLD or a regulatory agency at any time determines the facilities are being operated in an illegal, unsafe or unreliable condition, it shall have the unilateral right to interrupt and discontinue its receipt of energy and generation without any liability or obligation. 6. DAMAGE OR INTERFERENCE WITH WMGLD'S FACILITIES If the generating facilities cause damage to the WMGLD's electrical system and/or facilities, customer shall be responsible for all costs associated with the repair and/or replacement of such facilities or equipment. If Customers facilities in any way cause a loss or damage to the WMGLD's other customer, retail or wholesale, Customer shall be responsible for such damages, claims and losses. If Customer's generating facilities causes damage to or interferes with WMGLD or its customer's facilities, the WMGLD will disconnect the Customers from the WMGLD's system until the cause of the damage or interference is remedied. 7. ACCESS TO PREMISES The WMGLD may enter Customer s premises or property (i) to inspect with prior notice at all reasonably hours Customer s protective devices and to read meter; and (ii) to disconnect the interconnection facilities at the WMGLD s meter or transformer, without notice, if, in the WMGLD s opinion, a hazardous condition exists and such immediate action is necessary to protect persons, or the WMGLD s facilities, or property of others from damage or interference caused by Customer s electric generating facilities, or lack of properly operating protective devices or inability to inspect the same. 8. INDEMNITY AND LIABILITY The Customer hereby indemnifies and agrees to hold harmless and release Wakefield Municipal Gas and Light Department and its elected officials, officers, employees and agents and each of the heirs, personal representatives, successors and assigns of any of the foregoing (collectively, the Indemnitees ) from and against any and all losses, claims, damages, costs, demands, fines, judgments, penalties, obligations, payments and liabilities, together with any costs and expenses (including without limitation attorneys fees and out-of-pocket expenses and investigation expenses) incurred in connection with any of the foregoing, resulting from, relating to or arising out of or in connection with: (i) any failure or abnormality in the operation of the Customer s Generating System or any related equipment; (ii) any failure of the Customer to comply with the standards, specifications, or requirements referenced in this Agreement (including appendices hereto) which results in abnormal voltages or voltage fluctuations, abnormal changes in the harmonic content of the generating facility output, single phasing, or any other abnormality related to the quantity or quality of the power produced by the generating facility; (iii) any failure of the Customer duly to perform or observe any term, provision, covenant, agreement or condition hereunder to be performed or by or on behalf of the Customer or (iv) any negligence or intentional misconduct of Customer related to operation of the Generating System or any associated equipment or wiring.

12 9. FORCE MAJEURE 9.1 Suspension of Obligations. Neither Party shall be liable to the other for, or be considered to be in breach of or default under this Agreement because of, any failure or delay in performance by such Party under this Agreement to the extent such failure or delay is caused by or results from any such cause or condition which is beyond such Party s reasonable control, or which such Party is unable to prevent or overcome by exercise of reasonable diligence (any such cause or condition, a Force Majeure ), including breach of contract or failure of performance by any person providing services to the WMGLD which the Department intended to use in its performance under this Agreement. 9.2 Notice; Required Efforts to Resume Performance. Any Party claiming Force Majeure shall give the other Party maximum practicable advance notice of any failure or delay resulting from a Force Majeure, and shall use its reasonable best efforts to overcome the Force Majeure and to resume performance as soon as possible; provided however, that nothing in this Agreement shall be construed to require either Party to settle any labor dispute in which it may be involved. 9.3 No Excuse of Payment Obligations. Notwithstanding any other provision of this Agreement, in no event shall a Force Majeure excuse a Party s failure or delay to pay any amounts due and owing to the other Party under or pursuant to this Agreement. 10. INDEPENDENT CONTRACTORS The Parties hereto are independent contractors and shall not be deemed to be partners, employees, franchisees or franchisers, servants or agents of each other for any purpose whatsoever under or in connection with this Agreement. 11. ASSIGNMENT; BINDING AGREEMENT The Customer shall not assign its rights under this Agreement to any other Party without the express written consent of. The Department may impose reasonable conditions on any such assignment to ensure that all of Customer s obligations under this Agreement are met and that none of Customer s obligations are transferred to the Department as a result of default, bankruptcy, or any other cause. 12. NO THIRD PARTY BENEFICIARIES Except as expressly set forth in this Agreement, none of the provisions of this Agreement shall inure to the benefit of or be enforceable by any third Party. 13. ENTIRE AGREEMENT This Agreement and the Exhibits attached hereto set forth the entire agreement of the Parties and supersede any and all prior agreements with respect to the subject matter of this Agreement. The rights and obligations of the Parties hereunder shall be subject to and governed by this Agreement. 14. GOVERNING LAW; VENUE This Agreement shall be governed by and construed in accordance with the laws of the State of Massachusetts (regardless of the laws that might otherwise govern under applicable principals of conflicts of law of such state). Venue for any action arising under or in connection with this Agreement shall be in the Court of applicable jurisdiction in Massachusetts.

13 15. RULES OF CONSTRUCTION; STATUTORY REFERENCES No provision of this Agreement shall be construed in favor of or against either of the Parties hereto by reason of the extent to which any such Party or its counsel participated in the drafting thereof or by reason of the extent to which such provision or any other provision or provisions of this Agreement is or are inconsistent with any prior draft thereof. Any reference to statutes or laws will include all amendments, modifications, or replacements of the specific sections and provisions concerned. 16. AMENDMENT, MODIFICATIONS OR WAIVER Any amendments or modifications to this Agreement shall be in writing and agreed to by both Parties. The failure of any Party at any time or times to require performance of any provision hereof shall in no manner affect the right at a later time to enforce the same. No waiver by any Party of the breach of any term or covenant contained in this Agreement, whether by conduct or otherwise, shall be deemed to be construed as a further or continuing waiver of any such breach or waiver of the breach of any other term or covenant unless such waiver is in writing. 17. NOTICES AND OTHER COMMUNICATIONS Notice Methods and Addresses. All notices, requests, demands and other communications required or permitted to be given under this Agreement shall be given in writing (i) by personal delivery, (ii) by recognized overnight air courier service, (iii) by United States postal service, postage prepaid, registered or certified mail, return receipt requested, or (iv) by facsimile transmission, using facsimile equipment providing written confirmation of successfully completed transmission to the receiving facsimile number. All notices to either Party shall be made to the addresses set forth below. Any notice shall be deemed to have been given on the date delivered, if delivered personally, by overnight air courier service or by facsimile transmission; or, if mailed, shall be deemed to have been given on the date shown on the return receipt as the date of delivery or the date on which the United States postal service certified that it was unable to deliver, whichever is applicable. WAKEFIELD MUNICIPAL GAS AND LIGHT DEPARTMENT: ATTN: Pete Dion, General Manager 480 North Ave Wakefield, Massachusetts Telephone: (781) FAX: (781) CUSTOMER: Name: Address: City, State Zip: Telephone: FAX: 18. APPENDICES The Agreement includes the following appendices attached and incorporated by reference: Appendix A: Net(B) Metering Application & Compliance Form Appendix B: s Interconnection Standards for Customer-Owned, Grid Connected Electric Generating Systems of 10 Kilowatts or Less

14 19. TERM OF AGREEMENT This Agreement shall be and remain in effect until terminated by either Party on thirty (30) days prior written notice. The Generating System or the Customer may be disconnected from the WMGLD s electrical system at any time if it is considered unsafe or having adverse impact on the existing customers. IN WITNESS WHEREOF, the Parties hereto have caused two originals of this Agreement to be executed by their duly authorized representatives. CUSTOMER Signature Print Name Date WAKEFIELD MUNICIPAL GAS AND LIGHT DEPARTMENT Signature Print Name Date This agreement is not transferable. Upon sale of the property, system must be placed in lockout position prior to receiving final bill from the department.